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70312670 = 2589199397
BaseRepresentation
bin1000011000011…
…10001011011110
311220022020211222
410030032023132
5121000001140
610551013342
71512435131
oct414161336
9156266758
1070312670
1136764a4a
121b66a252
131174ac3c
1494a4218
15628d5b5
hex430e2de

70312670 has 32 divisors (see below), whose sum is σ = 128952000. Its totient is φ = 27599616.

The previous prime is 70312667. The next prime is 70312699. The reversal of 70312670 is 7621307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176912 + ... + 177308.

It is an arithmetic number, because the mean of its divisors is an integer number (4029750).

Almost surely, 270312670 is an apocalyptic number.

70312670 is a deficient number, since it is larger than the sum of its proper divisors (58639330).

70312670 is a wasteful number, since it uses less digits than its factorization.

70312670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70312670 is about 8385.2650524596. The cubic root of 70312670 is about 412.7412387502.

Adding to 70312670 its reverse (7621307), we get a palindrome (77933977).

The spelling of 70312670 in words is "seventy million, three hundred twelve thousand, six hundred seventy".

Divisors: 1 2 5 10 89 178 199 397 398 445 794 890 995 1985 1990 3970 17711 35333 35422 70666 79003 88555 158006 176665 177110 353330 395015 790030 7031267 14062534 35156335 70312670